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MDNR

Fish Hatcheries And Preserves, Peterson, Minnesota. NPDES permit MN0061221, in force until Nov 30, 2029. Last 12 months: over a limit 4 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 47 days after each period: outfall D006 form A1 monthly (5 values), outfall D008 form A1 monthly (17 values), outfall D013 form A1 monthly (17 values), outfall W014 form A1 monthly (2 values), outfall W015 form A1 monthly (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 60 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingOutfallParameterReportedLimitOver by
September 2026D006Solids, total suspended, daily maximum1528≤ 556 kg/d175%
September 2026D006Solids, total suspended, monthly average686≤ 281 kg/d144%
September 2026D008Solids, total suspended, daily maximum157≤ 60 mg/L162%
September 2026D008Solids, total suspended, monthly average79≤ 30 mg/L163%

Limits in force (43)

ParameterStatisticLimitMonthsOutfall
Solids, total suspendedmonthly average≤ 281 kg/dall yearD006
Solids, total suspendeddaily maximum≤ 556 kg/dall yearD006
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD006
BOD, carbonaceous [5 day, 20 C]monthly average≤ 230 kg/dall yearD006
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 463 kg/dall yearD006
Temperature, water deg. centigrademonthly averagereport only (deg C)all yearD008
Temperature, water deg. centigradedaily maximumreport only (deg C)all yearD008
pHinstantaneous minimum≥ 6.5 SUall yearD008
pHinstantaneous maximum≤ 8.5 SUall yearD008
Solids, total suspendedmonthly average≤ 30 mg/Lall yearD008
Solids, total suspendeddaily maximum≤ 60 mg/Lall yearD008
Nitrogen, total [as N]monthly averagereport only (mg/L)all yearD008
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all yearD008
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all yearD008
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all yearD008
Sulfate, total [as SO4]quarterly maximumreport only (mg/L)Mar, Jun, Sep, DecD008
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD008
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearD008
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD008
Solids, total dissolvedmonthly averagereport only (mg/L)all yearD008
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall yearD008
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 50 mg/Lall yearD008
Temperature, water deg. centigrademonthly averagereport only (deg C)all yearD013
Temperature, water deg. centigradedaily maximumreport only (deg C)all yearD013
pHinstantaneous minimum≥ 6.5 SUall yearD013
pHinstantaneous maximum≤ 8.5 SUall yearD013
Solids, total suspendedmonthly average≤ 30 mg/Lall yearD013
Solids, total suspendeddaily maximum≤ 60 mg/Lall yearD013
Nitrogen, total [as N]monthly averagereport only (mg/L)all yearD013
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all yearD013
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all yearD013
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all yearD013
Sulfate, total [as SO4]quarterly maximumreport only (mg/L)Mar, Jun, Sep, DecD013
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD013
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearD013
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD013
Solids, total dissolvedmonthly averagereport only (mg/L)all yearD013
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall yearD013
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 50 mg/Lall yearD013
Temperature, water deg. centigrademonthly averagereport only (deg C)all yearW014
Temperature, water deg. centigradedaily maximumreport only (deg C)all yearW014
Temperature, water deg. centigrademonthly averagereport only (deg C)all yearW015
Temperature, water deg. centigradedaily maximumreport only (deg C)all yearW015

How strict are these limits?

Cited limits by parameter: Minnesota's rules and the federal ones.

Same industry: the 4 Fishing, Hunting and Trapping permits in Minnesota.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MN0061221 · MCP: https://passage-data.com/mcp